Sunday, June 5, 2011
Nissan GT-R with tech ATTESA E-TS
Nissan GT-R sedan considered the most bizarre in-class supercar. Just a quick defeat by the Porsche 911 Turbo S when pitted against on one circuit in Germany, the principal of Japan to expand by adding technology ATTESA E-TS (Advanced Total Traction Engineering System Electronic Torque Split) at all four wheels which adopts a motion all-wheel drive (all wheel drive). Technology itself is not new for Nissan and Infiniti.
Nissan was curious about the performance of the GT-R a little below the Porsche 911 Turbo S. In fact, they both have the power 530 HP engine 6-cylinder turbo-double and double clutch transmissions. With that similarity, when accelerate from 0-100 km per hour, the GT-R needed 3.5 seconds, 0.2 seconds while its competitor more quickly. It may be because the GT-R weighs 150 kg heavier.
Another factor, which BorgWarner dual clutch transmission on Nissan, when the shift takes 200 milliseconds. While the Porsche with the gearbox MDD only 8 milliseconds.
Now, to overcome the shortage, the Nissan engineers try to add ATTESA E-TS. For the version of the GT-R which uses two parallel coupling as in front-engine, ATTESA E-TS has been in custom. With this enhancement, when the car in a stationary state, the system sends 2 percent of the available torque to the front wheels and 98 percent to the rear wheels.
When the car road, flat torque was shared 50:50. This is thanks to the use of multiple sensors (four in the ABS brakes, three in the G sensor, girbok and engine ECU) and UFO technology from Nissan. As usage of these two coupling as an almost parallel. Power is sent to the front wheels in particular through the open differential.
If one front wheel (it will spin faster than a flat on the asphalt) while maneuvering around the corner, tires that will brake automatically. Thus, the sensor that controls all four wheels, depending on driving.